Error opening version 1.8.7 datafile with head

[Tim Wunder]

Hi, 
When I execute 
/opt/gnucash-head/bin/gnucash --load /data/Finances/TestDatafile
I get this error:

Backtrace:
0* [primitive-load "/data/Finances/TestDatafile"]
1* <?xml

ERROR: In expression <?xml:
ERROR: Unbound variable: <?xml
[dad at downstairs dad]$ /opt/gnucash-head/bin/gnucash --load 
/data/Finances/TestDatafile

FWIW:
$ grep "?xml" /data/Finances/TestDatafile
<?xml version="1.0"?>


I can, however, open the file after starting gnucash with --nofile and opeing 
the file from within gnucash, but I have these warnings:

** WARNING **: Warning: xaccTransFindOldCommonCurr...(): unable to find a 
common currency, and that is strange.

** WARNING **: Warning: xaccTransScrubCurrency: no common transaction currency 
found for trans="CarmaxAutoFinance"

** WARNING **: Warning: xaccTransScrubCurrency:  split="Repayment - Principal 
Portion" account="97fe9dd0d23ad5c20474f25be34e3787" commodity="template"

** WARNING **: Warning: xaccTransScrubCurrency:  split="Repayment - Interest 
Portion" account="97fe9dd0d23ad5c20474f25be34e3787" commodity="template"

** WARNING **: Warning: xaccTransScrubCurrency:  split="CarmaxAutoFinance" 
account="97fe9dd0d23ad5c20474f25be34e3787" commodity="template"

<SX's load>

** CRITICAL **: Error: xaccAccountCommitEdit: unbalanced call - resetting (was 
-1)

** CRITICAL **: file qofquery.c: line 707 (qof_query_run): assertion 
`q->books' failed.

** CRITICAL **: file qofquery.c: line 707 (qof_query_run): assertion 
`q->books' failed.

Other interesting stuff. At first opening the file, I had an Imbalance account 
with 3 or 4 transactions. I didn't save the file, but when I re-opened it, I 
had a Orphan Account with a single transaction, which was different than the 
once that were in the Imbalance-USD account and I didn't have the 
Imbalance-USD account.

The test datafile is a copy of my main 1.8.7 datafile.
What can I provide that would give better insight as to what's going on (short 
of the datafile, that is).

Regards, 
Tim

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